Glass-Ceramic Materials on the Lithium Disilicate Basis: Achievements and Development Prospects

Abstract

The current state of developments and the prospects of using glass-ceramics based on lithium disilicate were analyzed. The choice of R 2 O-RO-RO 2-R 2 O 3-P 2 O 5-SiO 2 system for model glasses was justified. The structure of glasses after heat treatment in connection with their physico-chemical properties was studied. The developed lithiumsilicate glass-ceramic materials were characterized by high performance properties and can be used as transparent armor.

Tough, Bioinspired Transparent Glass‐Ceramics

“…Although the refractive index varies in a small scale, n = 1.545–1.555, a linear increase in refractive index with crystallinity was observed for the transparent glass‐ceramics (Figure 3d). These values were close to the reported refractive index of the lithium disilicate phase ( n α = 1.547; n γ = 1.558), [ 19 ] making it possible to achieve high transparency. In addition, the low birefringence of the lithium disilicate crystal (refractive index δ = 0.011) contributes to high transparency despite the large grain size in the current glass‐ceramic system.…”

Determination of the thermal diffusivity coefficient of transparent solids by a modulation polarimetry technique

“…Згiдно з рiвнянням (5) i залежностями y max (t) i для ВФ (рис. 2), Al-GC, KB 5 , KB 3 зразкiв визначено коефiцiєнт температуропровiдностi α за рiвнянням α = (yi+1−yi) 2 ti+1−ti (таблиця 1), де також для порiвняння наведено данi з довiдникiв [29][30][31][32]. Як видно з таблицi 1, розбiжнiсть коефiцiєнтiв температуропровiдностi, отриманих методом МП i iншими методами, задовiльна.…”

Features of the Formation of Nanostructure in Lithium-Aluminium-Silicate Glass–Ceramic Materials at the Initial Stages of Nucleation

“…За результатами проведених попередніх досліджень [10][11][12] було встановлено, що склокристалічні матеріяли СЛ 12 та СП 10 (табл. 1) відповідають критеріям структури скломатриці, які є необхідними для синтези ударостійких склокристалічних матеріялів.…”